SMBJ10C Equivalent & Substitute Parts

Part Overview

The SMBJ10C is a transient voltage suppressor (TVS) diode manufactured by Littelfuse Inc., designed for general-purpose overvoltage protection in surface-mount applications. This part operates with a 10V reverse standoff voltage and provides 17.85V maximum clamping voltage at peak pulse current. The SMBJ10C is classified as obsolete, making equivalent substitute parts necessary for new designs and ongoing production requirements. Substitute parts must maintain electrical compatibility across voltage ratings, current handling, and thermal performance while supporting the same DO-214AA (SMB) package footprint.

Key Parameters

Parameter	SMBJ10C
Manufacturer	Littelfuse Inc.
Category	Transient Voltage Suppressors (TVS)
Series	SMBJ
Product Status	Obsolete
Package / Case	DO-214AA, SMB
Voltage - Reverse Standoff (Typ)	10V
Voltage - Breakdown (Min)	10.53V
Voltage - Clamping (Max) @ Ipp	17.85V
Current - Peak Pulse (10/1000µs)	35.3A
Power - Peak Pulse	600W
Operating Temperature	-65°C ~ 150°C (TJ)
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitute parts for the SMBJ10C are qualified based on the following electrical and mechanical parameters:

Critical Matching Parameters:

Voltage - Reverse Standoff: 10V (nominal)
Voltage - Clamping (Max) @ Ipp: 17V to 17.85V range
Current - Peak Pulse (10/1000µs): 35.3A minimum
Power - Peak Pulse: 600W minimum
Package / Case: DO-214AA, SMB (surface mount)
Bidirectional Channels: 1
Type: Zener diode

Compliance Requirements:

RoHS3 Compliant
Moisture Sensitivity Level (MSL): 1 (Unlimited)
Product Status: Active (preferred for new designs)

Substitute parts are grouped into two categories: direct electrical equivalents with identical clamping voltage (17V) and current ratings (35.3A), and enhanced performance alternatives with higher peak pulse current (47.1A) and power dissipation (800W) that maintain voltage compatibility.

Parameter Comparison

Parameter	SMBJ10C	SMBJ10CA (MDD)	SMB8J10CA-E3/52 (Vishay)	SMB8J10CA-E3/5B (Vishay)	SMBJ10CA-E3/5B (Vishay)	SMBJ10CA-TP (MCC)	SMBJ10CA-TR (STMicroelectronics)	SMBJ10CE3/TR13 (Microchip)	TV06B100JB-G (Comchip)
Voltage - Reverse Standoff (Typ)	10V	10V	10V	10V	10V	10V	10V	10V	10V
Voltage - Breakdown (Min)	10.53V	11V	11.1V	11.1V	11.1V	11.1V	11.1V	11.1V	11.1V
Voltage - Clamping (Max) @ Ipp	17.85V	17V	17V	17V	17V	17V	17V	18.8V	17V
Current - Peak Pulse (10/1000µs)	35.3A	35.3A	47.1A	47.1A	35.3A	35.3A	37A	31.9A	35.29A
Power - Peak Pulse	600W	600W	800W	800W	600W	600W	600W	600W	600W
Operating Temperature	-65°C ~ 150°C	-50°C ~ 150°C	-55°C ~ 150°C	-55°C ~ 150°C	-55°C ~ 150°C	-55°C ~ 175°C	-55°C ~ 150°C	-65°C ~ 150°C	Not specified
Package / Case	DO-214AA, SMB	DO-214AA, SMB	DO-214AA, SMB	DO-214AA, SMB	DO-214AA, SMB	DO-214AA, SMB	DO-214AA, SMB	DO-214AA, SMB	DO-214AA, SMB
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
MSL Rating	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)
Product Status	Obsolete	Active	Active	Active	Active	Active	Active	Active	Active

Engineering Selection Recommendations

All listed substitute parts maintain active product status with ROHS3 compliance and MSL 1 rating, ensuring regulatory compliance and manufacturing compatibility with the SMBJ10C application requirements.

Direct Electrical Equivalents (Identical 35.3A Rating): SMBJ10CA (MDD), SMBJ10CA-E3/5B (Vishay), SMBJ10CA-TP (Micro Commercial Co), SMBJ10CA-TR (STMicroelectronics), and TV06B100JB-G (Comchip) provide direct substitution with matching peak pulse current and clamping voltage within the 17V specification. These parts are suitable for direct replacement in existing designs.

Enhanced Performance Alternatives (47.1A Rating): SMB8J10CA-E3/52 and SMB8J10CA-E3/5B (Vishay TransZorb® series) offer increased peak pulse current (47.1A) and power dissipation (800W), providing additional margin for transient protection while maintaining voltage compatibility.

Temperature Range Consideration: SMBJ10CA-TP supports extended operating temperature to 175°C, compared to the standard 150°C maximum. SMBJ10CE3/TR13 (Microchip) matches the original -65°C lower temperature limit of the SMBJ10C.

Frequently Asked Questions (FAQ)

Q: Can I use SMB8J10CA-E3/52 or SMB8J10CA-E3/5B as direct replacements for SMBJ10C?

A: Yes. These Vishay parts maintain the required 10V reverse standoff voltage and 17V clamping voltage. The higher peak pulse current (47.1A vs. 35.3A) and power rating (800W vs. 600W) provide enhanced protection margin without affecting circuit compatibility. The DO-214AA package footprint is identical.

Q: What is the difference between SMBJ10CA and SMB8J10CA variants?

A: Both maintain the same voltage specifications (10V standoff, 17V clamp). The SMB8J variant offers higher peak pulse current (47.1A) and power dissipation (800W) compared to the standard 35.3A/600W rating. Selection depends on transient energy requirements in the application.

Q: Does SMBJ10CE3/TR13 from Microchip have different electrical characteristics?

A: SMBJ10CE3/TR13 maintains the 10V standoff voltage but specifies 18.8V maximum clamping voltage and lower peak pulse current (31.9A). This part is suitable only if the application tolerates higher clamping voltage and lower current handling.

Q: Are all substitute parts available in the same packaging options?

A: All substitute parts use DO-214AA (SMB) surface-mount package. Packaging variants (Tape & Reel, Cut Tape, Digi-Reel) differ by manufacturer but maintain identical footprint and land pattern compatibility.

Q: Which substitute offers the widest operating temperature range?

A: SMBJ10CA-TP (Micro Commercial Co) supports -55°C to 175°C, providing the highest upper temperature limit. SMBJ10CE3/TR13 (Microchip) matches the original -65°C lower limit.

Q: Are all substitutes RoHS3 compliant?

A: Yes. All listed substitute parts carry ROHS3 Compliant certification with MSL 1 (Unlimited) moisture sensitivity rating, matching the original SMBJ10C compliance profile.

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